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Proceedings Paper

Dynamics of flexoelectric surface oscillations in a nematic liquid crystal
Author(s): S. Yablonski; Mauro Rajteri; C. Oldano; Georges E. Durand
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Paper Abstract

New dynamical aspects have been investigated in the flexoelectrically excited angular waves of a nematic liquid crystal by means of a modulation ellipsometry technique. At low frequency (f < 1 Hz) the gradient flexoelectric torque dominates and causes an out of phase electrooptical effect. At high frequency (f > 1 kHz), the surface friction is responsible for a new dynamical behavior. The surface viscosity is evaluated to be 3 (DOT) 10-5 erg(DOT)s/cm2.

Paper Details

Date Published: 19 January 1996
PDF: 8 pages
Proc. SPIE 2731, International Liquid Crystal Workshop on Surface Phenomena, (19 January 1996); doi: 10.1117/12.230642
Show Author Affiliations
S. Yablonski, Univ. de Paris-Sud (France) Institute of Crystallography (Russia)
Mauro Rajteri, Politecnico di Torino (Italy)
C. Oldano, Politecnico di Torino (Italy)
Georges E. Durand, Univ. de Paris-Sud (France)


Published in SPIE Proceedings Vol. 2731:
International Liquid Crystal Workshop on Surface Phenomena
Evgenij Rumtsev; Maxim Georg Tomilin, Editor(s)

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